Brussels experiences net population outflow of 18,000 residents to Flanders and Wallonia in 2025

Data from the FPS Interior indicates a significant demographic shift as 37,000 residents departed Brussels for other Belgian regions, while only 19,000 arrived. This net loss of 18,000 people continues a long-term trend of urban-to-suburban migration, raising questions about the capital's long-term fiscal base and housing market stability.